Detachable securing means for tires.



J. BAKER. 'DETAGHABLE SECURING MEANS FOR TIRES.

' APPLICATION FILED FEB.14, 1907. v 91 3,252. Patented Feb. 23, 1909.

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UNITED STA JOHN BAKER, OF PASADENA, CALIFORNIA.

DETACHABLE SECURING MEANS FOR TIRES.

Specification of Letters Patent.

Patent ed Feb. 23, 1909.

Application flied. February 14, 1907. Serial No. 357,418.

To all whom it may concern:

Be it knownthat 1, JOHN BAKER, a citizen residing at Pasadena, Angeles and State of have invented new and useful Detachable Securing Means for Tires, of which the following is a specification.

This invention relates to means for detachably securing tires to vehicle wheels, being particularly adapted for the attachment of pneumatic or cushion tires, and the main object of the invention is to provide a .detachable fastening means which is extremely in the county of Los simple in construction, of economical manufacture and which, while positively locking the tire in position, and preventing accidental displacement of the tire, allows the ready removal of the tire when desired.

The accompanying drawings illustrate the invention and referring thereto :F igure 1 is a cross section through a rim and tire form ofthe invention;

1g. 2 is a similar view, showing a slightly modified form of construction adapted for a different tire. Fig. 3 is a plan view of the locking ring employed with both forms.

1 designates the is secured, in any suitable manner, a rim 2, formed preferably of metal, and having a retaining flange 3 formed on one edge thereof. The other edge of the rim 2 is provided with an enlargement i having a shoulfelly 1 the der 5 which abuts against the edge of the enlargement i also having an annular groove 6 the inner wall of which is inclined as shown in Fig. 1, while its outer wall is perpendicular to the upper face of the rim 2.

7 designates the outer 8 designates the removableinner air tube. The shoe 7 is provided with enlarged locking flanges 9, of well known form, one of which interlocks with the retaining flange 3, while the other locking flange 9 interlocks with a detachable retaining ring 10, the latter having a broad flange 11 wedged-shaped in cross section, with its flat lower face resting upon the outer fiat face of the rim 2, the outer'inclined face of the flange 11 forming a seat for the locking flange 9 of the tire. The retaining ringlO is provided with an annular-groove 12 which registers with the groove 6 in the rim when the retainin ring is in position for retaining the tire. s lit locking ring is employed which normally ies felly of the wheel to which their com shoe of the tire and "the retaining ring 10 may partially within the groove 12 and partially in the groove 6, and the inner ed e of the locking ring 13 is'beveled, as clear y shown in Fig. 1, to fit the inclined wall of the groove 6. The retaining flange 10 at intervals is adapted to receive a series of locking screws 14, each locking screw having a con ical end as shown, the ring being provided with a series of semi-conical concavities 15, the taper of which substantially corresponds to the taper of the conical ends of locking screws 14. The locking ring 13 has a natural tendency to spring open with its ends apart as shown in'Fig. 3.

Normally the tire is held in place on the .rim by the retaining flange 3 and retaining ring 10,-the latter being positively locked from movement in either direction-on the rim 2 by securely wedged into the groove 6 by the locking screws 14, which'respectively engage their seats formed by the registering con-- cavities 15. The locking ring when thus secured in position is contracted and has its ends closed together so' that the two seats .15 adjacent the'ends of the locking ring are spaced the proper distance apart to reg ster with their related locking screws 14.

In order to remove the tire from the rim or to disengage one of the lockingfian es 9 to permit access to the inner tube, the ocking screws 14: are first retracted to withdraw "cal ends from their seats 15 in the locking ring, which allows the locking ring to expand and spring out into the groove 12 in the retaining ring 10 so that the locking ring 13 is with the roove 6 in the rim 2, wiereupon be slipped ofi'the rim 2, thus freeing the adjacent locking flange 9 of the tire and permitting access totheoinner tube, or allowing ready removal of the tire from the rim. In replacing the. retaining ring 10, the locking ring 13 is expanded into-the groove 12 so that its inner edge does not project below the inner flat face of the retaining ring which allows the latter to he slipped on over the edge (if the rim 2 withoutthe least difiiculty. It will be noted that the, locking ring 13 absolutely prevents movement of the retaining ring 10 in either direction on the rim 2 and that no dependence is laced uponthe pressure of. the the or its coking flange 9 to hold the retaining ring 10 in position, thus the retainthe locking ring 13, the latter being entirely free from on agement ing ring can not i relaxes.

' ring lying in annular groove near its edge, groove being beveled, a retalnm Fig. 2 showsa slightly modified form in which the only difference is in the form of the retaining flange 3 and retaining ring 10, both flange 3 and retaining ring 10 having fiat faces 16 which bear against corresponding flat faces 17, onthe enlarged portions 18 of the tire, the latter having wires 19 extend ing therethrough,

What I. claim is 1. A rim for vehicle wheels having a groove near one edge, a retaining ring on the rim and having a grooveregistering with i the first named groove, a split locking ring lying within said grooves, and a series of locking screws for; removably holding the locking ring in engagement with the. groove inthe rim.

' 2. In a vehicle wheel, a rim havin an one wall or the ring on whic registers asplit looking both saidgrooves and having a beveled ed e, and a series of locking screws with conica ends screwed in the'retaining ring with-:their conical ends bearing against the lockingl ring and wedging the" latter tightl in t e groove in the rim,

3. rim for vehicle wheels having a tireretaining flange at one, edge, the other edge having a groove, a retaining ring on the rim and havin a groove registering with the first ,name groove, a split locking ring lying within said grooves, and a series of locking screws in said retaining ring for said rim and having a groove with the groove in the rim,-

latter having conical removably holding the locking ring in engagement With the groove of the rim, said locking ring having a series of semi-conical recesses forming seats for the ends of ends which act against said seats to wedge the locking ring into engagement in the groove in the rim.

A rim for vehicle wheels having a tire-- retaining flange at having a groove, and having a groove registering with the first named groove, asplit looking ring lying Within said grooves, and a series of locking screws in said retaining ring for removably holding the locking ring in engagement with the groove in the rim, said rim having a shoulder which abuts against the edge of the felly of the Wheel.

5. A, rim for vehicle Wheels having a tireretaining flange at one edge, the other edge having a groove, a retaining ring on the rim and havin a groove registering with the first name groove, a split locking ring lying within said screws in said one edge, the other edge retaining ring for removably holding the locking ring in engagement with the groove in the rim, the depth of the ,groove in said retaining ring being sufficient tofully receive the locking ring when the latter is allowed to expand thereinto by the retraction of the looking screws.

In testimony'whereof, I have hereunto set my hand at Los Angeles California this 9th day of February 1907.

j JOHN BAKER.

In presence offi GEORGE T. HACKLEY,

FRANK L. A. GRAHAM.

the locking screws, the

a retaining ring on the rim I grooves, and a series of locking Y 

